§7547 Nonroad Engines and Vehicles

Summary

EPA must study pollution from nonroad engines and vehicles (not including locomotives) and finish that study within 12 months of November 15, 1990. Within 12 months after the study ends, and after public notice and a chance for a hearing, EPA must decide whether carbon monoxide, oxides of nitrogen, and volatile organic compounds from those engines or vehicles significantly add to ozone or carbon monoxide problems in more than one area that failed to meet air quality standards. If EPA finds they do, it must issue rules within that same 12‑month period setting emission limits for new nonroad engines and vehicles that cause or contribute to the problem. The limits must cut emissions as much as possible using technology EPA expects will be available, while considering costs, time needed by manufacturers, and effects on noise, energy, and safety. EPA should first consider rules like those for similar highway vehicles. The rules cover the engines’ or vehicles’ useful life. EPA may also set standards for other harmful emissions if they are found to be significant. Within 5 years after November 15, 1990, EPA must set standards for new locomotives and their engines using the same technology-and-cost approach. Rules must take effect as soon as practical, allowing time for required technology and fair costs. Any control device that creates an unreasonable risk to health, welfare, or safety cannot be used. These standards will be enforced the same way as other vehicle emission rules, and EPA will write enforcement procedures as needed.